id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
fcis-6911	Fu, Guangjie; Lu, Zhiwei	MMC circulating current suppression strategy based on improved quasi-PR control	2023	5	.pdf	application/pdf	2873	168	57	At present, circulation suppression strategies are mainly divided into passive circulation suppression and active circulation suppression. Circulation suppression There is a difference between the DC voltage and the sum of the upper and lower bridge arm voltage, which is fundamentally due to the unbalanced voltage equalization of the submodules, resulting in the circulation inside the MMC.	cache/fcis-6911.pdf	txt/fcis-6911.txt